JP4999455B2 - Seat ventilators and seats - Google Patents

Description

The present invention relates to a seat ventilation device and a seat to be mounted on a vehicle seat such as an automobile, for example, and in particular, by devising a configuration of a ventilation path, it is desirable even if a driver or the like repeatedly sits and leaves. In addition to being able to stably secure the amount of ventilation, it relates to an inexpensive one that does not impair the sitting comfort.

  For example, when sitting on a seat of an automobile or the like for a long time, particularly under conditions of high ambient temperature and humidity, “steaming” and “stickiness” occur on the surface of the seat and the human body contact portion. Since this "steaming" and "stickiness" cause a loss of comfort for the seated person, various countermeasures for such problems have been studied.

  For example, Patent Document 1 proposes a method of providing a ventilation device that blows air from the inside of a vehicle seat toward the surface, thereby eliminating “steaming” and “stickiness”.

  FIG. 23 is an exploded perspective view showing an example of a vehicle seat disclosed in Patent Document 1. In the vehicle seat shown in FIG. 23, an elastically deformable rubber material is provided in the seat skin 109 having air permeability and the recess 110 of the seat pad 107 in which the recess 110 is formed on the surface on the passenger contact side. A blower tube 111 as a configured blower path forming means is provided, and air blown from an air conditioner unit 112 as a blower means moves in the blower tube 111 and is formed on the passenger contact side of the blower tube 111. The air is passed through the through-hole 114 serving as the air passage portion to the passenger side through the seat skin 109.

  Another example of this type of ventilation device is disclosed in Patent Document 2, for example. FIG. 24 is a perspective view showing the configuration of the ventilation device disclosed in Patent Document 2. In FIG. 24, reference numeral 115 denotes a branch joint connected to a blower source (not shown) (for example, an air pump). The branch joint 115 includes a plurality of flexible joints arranged in parallel at a predetermined interval. A ventilation path group 118 composed of tubes 116 is connected. And the flexible tube 116 which comprises the ventilation path group 118 is formed with the single air blowing port 117 in the state which shifted each position.

In addition, this ventilation device is arranged between the seat skin of the vehicle seat and the wadding and is supposed to be used for actual use.

  According to Patent Document 2, in this ventilation device, when a driver or the like sits down, the flexible tube 116 is compressed and deformed, but by arranging a plurality of flexible tubes 116 in parallel, the flexible tube 116 The share of the seating load per one piece 116 is suppressed, and the collapse of each flexible tube 116 can be reduced. Further, the formation position of the outlet 117 is shifted for each flexible tube 116, and the flexible tube It is said that the air permeability is surely improved by dispersing in the entire arrangement region 116.

Further, by arranging the plurality of flexible tubes 116 in parallel, the contact of the air passage group 118 with respect to the seated person such as the driver can be obtained in a state closer to the surface than the line. It is said that the provision of pleasure is surely prevented.

JP 2000-125990 A Japanese Patent Laid-Open No. 2003-4688

However, the conventional configuration has the following problems.
First, in the conventional example shown in Patent Document 1, it is necessary to form a concave portion 110 having a complicated shape in the sheet pad 107 in advance so as to obtain an air blowing amount equal to the blowing efficiency and the required area. In addition, since it is necessary to prepare a blower tube 111 having a complicated shape that fits in the recess 110 without a gap, there is a problem that the cost is significantly increased.

Further, if the through hole 114 provided in the blower tube 111 is not necessarily directed to the seat skin 109 side, the blowout amount from the seat skin 109 is reduced, but by repeating the seating and separation, the seat pad 107 There is a possibility that the blower tube 111 disposed in the concave portion 110 is twisted and the direction of the vent hole 114 is shifted from the sheet surface in a different direction. In such a case, the amount of air blown from the seat skin 109 is greatly reduced, and eventually the comfort of the seated person is impaired.

Thus, for this problem, for example, it is conceivable to bond and fix the concave portion 110 formed on the sheet pad 107 and the blower tube 111. At this time, the vent hole 114 must be on the sheet skin 109 side. Therefore, the work becomes very complicated and the workability is greatly reduced. In this case, the adhesive used to bond and fix the recess 110 formed in the sheet pad 107 and the blower tube 111 permeates into the sheet pad 107, so that a part of the sheet pad 107 is flexible. Decreases, the texture becomes hard, and a problem that the comfort of the seated person is impaired occurs.

  On the other hand, in the conventional example shown in Patent Document 2, it is not necessary to form a concave portion having a complicated shape in the sheet pad in advance, and it is not necessary to prepare a tube that matches the shape of the concave portion of the sheet pad. It is considered that this is advantageous in terms of cost compared to the first conventional example. However, if the plurality of flexible tubes 116 are simply arranged in parallel to suppress the share of seating load, the respective flexible tubes 116 cannot be crushed depending on the magnitude of the load. When the diameter of the flexible tube 116 is increased to increase the thickness, or the seat pad 107 is softened to improve comfort, the collapse of the flexible tube 116 becomes significant. There was a problem. This is because a predetermined gap is formed between the plurality of flexible tubes 116, so that when a load is applied from the upper side of the flexible tubes 116, the flexible tubes 116 are flattened sideways. It was caused by spreading.

Further, in this conventional example, when the seating and the seating are repeated, the respective flexible tubes 116 move, the flexible tubes 116 overlap each other, and the flexible tubes 116 are twisted, and the outlet 117 May face in a different direction from the sheet skin side. In this case, it becomes impossible to ensure a sufficient amount of blowing air, and because the arrangement of the flexible tubes 116 becomes non-uniform, the sense of incongruity when seated becomes significant and the comfort of the seated person is impaired. A problem will occur.

The present invention has been made on the basis of such points, and the purpose of the present invention is to stably secure a desired amount of ventilation even when the seated person repeatedly sits and leaves. without impairing the comfort to provide an inexpensive seat ventilation device and the seat.

In order to achieve the above object, a ventilating device for a seat according to claim 1 of the present invention is a ventilation passage formed in a sheet shape by being integrated in parallel in a state in which a plurality of tubes are connected to a blowing source and the blowing source. And the outlet is formed in a slit shape in the ventilation path.
A seat ventilator according to claim 2 is the seat ventilator according to claim 1, characterized in that the tube is made of an olefin-based thermoplastic elastomer .
According to a third aspect of the present invention, there is provided a ventilating apparatus for a seat according to the first aspect, wherein the ventilating path is connected to the air source via a nozzle .
According to a fourth aspect of the present invention, there is provided a ventilating apparatus for a seat according to the first aspect , wherein the tube has a circular cross-sectional shape .
The seat ventilator according to claim 5 is the seat ventilator according to claim 1, characterized in that the tube has a square cross-sectional shape .
According to a sixth aspect of the present invention, there is provided a ventilating device for a seat according to the first aspect, wherein an end of the tube opposite to the air source is closed .
According to a seventh aspect of the present invention, there is provided a ventilating device for a seat according to the first aspect, wherein an end of the tube opposite to the air source is open .
The seat ventilation device according to claim 8 is the seat ventilation device according to claim 1, wherein the plurality of tubes are integrated in parallel by adhering adjacent tubes to each other. It is.
The seat ventilator according to claim 9 is the seat ventilator according to claim 1, characterized in that the plurality of tubes are installed on a seat and integrated in parallel via the seat. It is.
The seat ventilation device according to claim 10 is the seat ventilation device according to claim 9, wherein the plurality of tubes are integrated in parallel so as to be sandwiched between a pair of seats. It is.
The seat ventilating device according to claim 11 is the seat ventilating device according to claim 9, wherein the plurality of tubes are divided in the longitudinal direction, and the plurality of divided tubes are separated by a predetermined interval. In this state, they are integrated in parallel in a state of being installed on the sheet .
According to a twelfth aspect of the present invention, there is provided a seat comprising a seat main body and the ventilating device for a seat according to any one of the first to eleventh aspects incorporated in the seat main body. is there.
The seat according to claim 13 is the seat according to claim 12 , wherein the seat body is composed of a seat pad and a seat skin fixed to the surface of the seat pad, and the seat pad includes the seat skin. Is provided, and the ventilation path of the seat ventilation device is installed so as to avoid the groove .
Further, the seat according to claim 14 is the seat according to claim 13, wherein the air passage of the seat ventilator is installed in such a manner as to be hung on the curved surface portion of the seat body, and the curved surface portion of the air passage. The part overhanging is provided with an outlet .
According to a fifteenth aspect of the present invention, in the seat according to the thirteenth aspect, the seat is for a vehicle.

  According to the ventilating apparatus of the present invention, first, since a plurality of tubes are integrated in parallel in the ventilation path and formed into a sheet shape, even if a load is applied to the tubes when seated, some of the tubes are completely flattened. Therefore, there is no possibility that the ventilation rate cannot be secured. Further, even if the seating and separation are repeated, the tubes are not kinked and the tubes do not overlap each other, so that the position of the outlet formed in the tubes does not move. Therefore, it is possible to stably secure a necessary ventilation amount according to the intended use and not to impair sitting comfort. In addition, it is not necessary to provide a recess in the sheet pad in advance, and since it is not necessary to fix the sheet pad using an adhesive or the like, the manufacturing process can be greatly reduced, and therefore an inexpensive ventilation device is provided. Can do.

Embodiments of the present invention will be described below with reference to the drawings.
This embodiment shows an example in which the present invention is applied to a vehicle seat such as an automobile.
The ventilation device 1 according to the present embodiment is configured as shown in FIG. First, there is an air source 2 composed of a fan. The air source 2 is made of an olefin-based thermoplastic elastomer, and 70 tubes 4 having an inner diameter of 3 mmφ and an outer diameter of 4 mmφ are integrated in parallel and formed into a sheet shape. Road 3 is connected. Here, the ventilation path 3 is inserted and fixed to the outlet of the air source 2 in a state where one end of the tube 4 integrated in parallel is divided and overlapped so that it can be inserted into the outlet of the air source 2. . Three straight slit-shaped outlets 5 having a width of 10 mm are formed at intervals of 60 mm on the upper surface side (sheet skin side) of the plurality of tubes 4 constituting the ventilation path 3, and are connected to the air source 2. The end on the non-side is closed.

  By using the ventilation device 1 having such a configuration, a load is applied to the tube 4 from above, and the tubes 4 are integrated even if the tubes 4 are flattened. By eliminating the deformation beyond a certain level, even if a load assumed in actual use is applied, it is not completely crushed, and a desired air flow rate can be ensured.

  Here, when the tubes 4 are not integrated in parallel, the air flow rate at the time of sitting is reduced to 0.6% at maximum as compared to the case of not sitting, whereas the tubes 4 are made as in the present embodiment. In the case of parallel integration, it has been confirmed by experiments that the reduction is only 47% at maximum.

In addition to the method shown in FIG. 1, for example, as shown in FIG. 2, the air source 2 and the air passage 3 may be connected to the air source 2 and the air passage 3 via the nozzle 6. It is possible to connect. This has the advantage that the air flow rate of any tube 4 from the center to the end is substantially equal.
The air source 2 and the nozzle 6 are not limited to being directly connected, but the air source 2 and the nozzle 6 are connected via a duct having an arbitrary cross-sectional shape in order to increase the efficiency of assembling to the seat. It is also possible.

  Further, when the blower source 2 and the ventilation path 3 are connected via the nozzle 6, if the cross-sectional shape of the tube 4 is circular, the tube 4 is connected at the connection portion with the nozzle 6 as shown in FIG. It is preferable to connect in a row. Thereby, since the clearance gap between the nozzle 6 and the tube 4 in a connection part can be reduced, ventilation loss can be decreased. When the amount of air flow is compared between the case where the tube 4 is in one row and the case where the tube 4 is in two rows, it was 206.7 L / min in the case of one row, whereas it was 232.8 L / min in the case of two rows. It is min and it has confirmed that the 2nd row | line | column has much ventilation volume and there are few ventilation losses.

When the tubes 4 are connected in two rows, as shown in FIG. 4, at the end of the tube 4 on the nozzle side, the joining portion of the upper row and the lower row is scraped into a so-called “conical shape”. It is also conceivable (the part cut in FIG. 4 is indicated by reference numeral 4a). Thereby, it comes to go to the center of the tube 4 with which wind was integrated, and since it becomes difficult to remove | deviate from the clearance gap between the nozzle 6 and the tube 4, ventilation loss can be decreased.

  The material of the tube 4 is not particularly limited. In addition to the above olefinic thermoplastic elastomer, for example, olefinic resin, silicone rubber, vinyl chloride resin, polyvinylidene fluoride (PVDF), ethylene-tetrafluoroethylene copolymer Various materials such as (ETFE) and various elastomers can be used.

  The diameter and thickness of the tube 4 are not particularly limited, and may be set as appropriate in accordance with the balance of characteristics such as flexibility, difficulty of being crushed, and air flow. Moreover, what is necessary is just to set the length and the number of a tube suitably according to the ventilation position which is desired, a usage form, etc.

  Further, the cross-sectional shape of the tube 4 is not particularly limited. For example, in the case of a square shape having a plurality of holes as shown in FIG. 5, the bonding strength between the tubes 4 is also close to a linear shape in the case of the tube 4 having a circular cross-sectional shape. In this case, since the adhesive surface is wide, there is an advantage that more adhesive strength can be obtained. Furthermore, in the case of the square tube 4, the same air flow rate can be obtained even when the height is lower than in the case where the cross section is circular. Therefore, even when the tube 4 is integrated in parallel and incorporated in the seat, There is an advantage that comfort is not impaired. There is also an advantage that the cost can be reduced because the number of wires required for a certain area is small.

On the other hand, if the cross-sectional shape of the tube 4 is circular, there is an advantage that the tube 4 is less likely to be crushed than when the cross-sectional shape is a square shape even when a load more than expected in actual use is applied. In addition, when the ventilation device is incorporated into the curved surface portion, when the cross-sectional shape of the tube 4 is circular, it is easier to bend because the cross-sectional shape is easier to bend than when the tube is square. In short, the cross-sectional shape may be appropriately selected according to the state of use.

The position of the blowout port 5 may be different for each tube 4 or may be formed in a straight line, but in FIG. 1, the blowout port 5 in a straight slit shape is formed from the viewpoint of mass productivity. . The size of the outlet 5 is not particularly limited. For example, when the tube 4 having an inner diameter of 3 mmφ and an outer diameter of 4 mmφ is used to form the straight slit-like outlet 5, the width of the outlet 5 is about 5 to 15 mm. If so, it is preferable because a sufficient amount of ventilation can be obtained and it is difficult to be crushed even when a load is applied. Moreover, the position of the blowout port 5 may be arbitrarily formed according to the use application, and may be formed at a plurality of locations, but when formed at a plurality of locations, if the distance between these is 50 mm or more, the load is increased. It is preferable because it is difficult to be crushed when applied.

Moreover, in FIG. 1, although the edge part of the side which is not connected with the ventilation source 2 is plugged up, it is the state opened without blocking part or all of the edge part of the side which is not connected with the ventilation source 2 It is possible to make it function as an outlet. Further, when the end portion is an opening, as shown in FIG. 6, the upper portion of the end portion may be cut away so that the wind blows upward. In short, it is only necessary to form the outlet 5 at an arbitrary position of the tube 4 so as to obtain a necessary amount of ventilation according to the intended use.

  In this embodiment, a plurality of tubes 4 are integrated in parallel. In this embodiment, a necessary number of tubes 4 are prepared in advance by a known extrusion method, and the tubes 4 are arranged in parallel. Place in a frame slightly narrower than the total width, place a metal plate on top of it to cover the entire tube 4, heat it under a specified load, soften the tube 4, and bond the tubes 4 together Made it. The heating condition was a profile of about 1 hour from room temperature to 200 ° C., and the required adhesive strength was obtained.

In the present invention, the method of integrating a plurality of tubes in parallel is not limited to the method of softening and bonding by pressure heating as described above.
For example, as another method, it is conceivable that a plurality of pre-formed tubes are arranged in parallel and then the adjacent tubes are bonded together using an adhesive or the like. In this method, for example, when the tube is made of silicone rubber, a thermosetting silicone adhesive is suitable.

Another possible method is to arrange a plurality of preformed tubes in parallel and then irradiate the contact surfaces of adjacent tubes with a laser beam to fuse and integrate the tubes together. In this case, the tube can be made of a resin having a melting point of 200 ° C. or higher, such as polyvinylidene fluoride (PVDF) or ethylene-tetrafluoroethylene copolymer (ETFE).

As another method, a plurality of tubes are knitted into an interdigital shape using a thermoplastic resin knitting yarn or a knitting yarn obtained by coating various fibers with a thermoplastic resin. A method can also be considered in which the thermoplastic resin of the yarn is softened and bonded to form a sheet in which the interval between adjacent tubes is maintained.

In addition, as another method, a method of forming a belt-like tube having a predetermined width by a conventionally known coextrusion molding method into a sheet shape, a resin film made by a conventionally known hot press molding method or welder method A method of forming a sheet having a plurality of parallel holes is also conceivable.

A method of directly manufacturing a sheet-like molded product having a plurality of parallel holes by a known injection molding method is also conceivable.

Another possible method is to arrange the tubes in parallel on a sheet of resin or elastomer, and to integrate the sheet and the tube. As a specific example, using the same material as the tube (in the case of this embodiment, an olefin-based thermoplastic elastomer), a method of integrating the tube and the sheet by heat fusion, an adhesive layer on the surface For example, a method of integrating the tube and the sheet with the adhesive layer by using the sheet having the above-described method may be used.
In the above description, the sheet has been described. Of course, a cloth or film may be used.

  FIG. 7 shows an example of a state in which the ventilation device according to the present embodiment is incorporated in a vehicle seat such as an automobile. In FIG. 7, first, a tube 4 is integrated in parallel between a seat pad 7 and a seat skin 9 that do not form a recess, and a ventilation path 3 formed into a sheet shape is installed, and an air source installed under the seat. 2 is connected. Here, the blower source 2 may be, for example, a built-in Peltier element capable of generating hot air or cold air, or an air conditioner such as an air conditioner, in addition to a normal fan. . In such a case, by allowing the cool air to flow through the tube 4, the effect of removing the stuffiness and stickiness caused by the sweat of the seated person can be further enhanced, and the comfort can be further improved.

  Further, when the ventilation device is incorporated, for example, as shown in FIG. 8, if the blowout port 5 is formed in a curved surface portion such as a portion located on the back of the knee, a larger air volume than the blowout port formed in the flat portion is obtained. Since it can be obtained, comfort can be further improved.

  In addition, as shown in FIG. 9, for example, a conventionally known seat heater 8 may be installed between the ventilation device according to the present embodiment and the seat skin 9. As the seat heater 8, any conventionally known one can be used. For example, the one shown in Patent Document 3 is particularly preferable because it has good air permeability. By combining with a seat heater in this way, it is possible to have both a function of removing stuffiness and stickiness due to ventilation and a heating function.

JP 2003-174952 A

In addition, the comfort of the seated person can be further improved by appropriately controlling the timing and amount of ventilation, the temperature and humidity of hot and cold air in combination with a temperature sensor and a humidity sensor.
The overall configuration of the ventilation device of the present invention is not limited to the above-described embodiment. For example, as shown in FIG. 10, if the tubes 4 integrated in parallel are connected to the nozzle 6 in a state where the outlets 5 are reversed and overlapped, the air can be blown in two directions.

As shown in FIG. 11, if two tubes 4 integrated in parallel are stacked and connected to the nozzle 6, and the blowout port 5 of the through hole is formed in the upper tube 4, the wind of the lower tube 4 is made to flow upward. Since it can pass through the tube 4 and can be taken out to the upper surface side of a ventilation path, the air volume from the blower outlet 5 can be increased more.

Moreover, if it is a thing which is not integrating some adjacent tubes 4 like FIG. 12, ventilation can be performed to several places.

Further, if a plurality of tubes 4 integrated in parallel with the nozzle 6 are connected as shown in FIG. 13, air can be blown to a plurality of locations.

Further, as shown in FIG. 14, it is conceivable to incorporate a ventilation device on the back side of the seat.

As shown in FIGS. 15 and 16, when a groove 11 for fixing the seat skin 9 is formed in the seat pad 7 of the seat, the ventilation path 3 is avoided so as to avoid the groove 11. 3 can be considered.

Further, as shown in FIGS. 17 and 18, in order to install the air passages 3 and 3 so as to avoid the groove 11, a through hole 13 is formed in the seat pad 7, and the air passage 3 is provided there. It is possible to make it pass.

Further, FIG. 10 shows a ventilation path 3 in which two tubes 4 integrated in parallel are stacked and connected to the nozzle 6, and such a ventilation path 3 is connected to the seat surface of the seat as shown in FIG. 19. The structure installed so that it can ventilate to both backs is also considered. In other words, one of the two stacked sheets is installed on the seating surface and the other is installed on the back surface.

Further, as a method of integrating the plurality of tubes 4 and the sheet, as shown in FIG. 20, it is conceivable to integrate the plurality of tubes 4 with the two sheets 21 and 23 sandwiched. At that time, in order not to block the outlet provided in the tube 4, a notch is formed on the sheet 21, 23 side or the sheet 21, 23 having good air permeability is attached. It is possible to use it.

Further, as a method of integrating the plurality of tubes 4 and the sheet, as shown in FIG. 21, another plurality of tubes 4 are attached in a state where a predetermined interval exists at the end of the plurality of opened tubes 4. It is conceivable that a plurality of tubes 4 are installed in a state where a predetermined interval is further provided, and they are integrated by a sheet 25. In this case, the part of the said predetermined space | interval becomes the blower outlet 5. FIG. Therefore, a process for forming a separate outlet is unnecessary.

Also, as shown in FIG. 22, if the duct 27 is of a branch type, a plurality of (two in the case of FIG. 22) nozzles 6 and 6 are provided for one air source 2. It can be considered that the ventilation paths 3 and 3 are connected and arranged.

  As described above in detail, according to the present invention, even if a seated person repeatedly sits and leaves, it is possible to stably secure a desired air flow rate, and to reduce the seating comfort and at a low cost. A ventilation device can be provided. In addition to automobile seats, for example, vehicle seats such as motorcycles and railroad vehicles may be used, child seats, seats for ships and aircraft, amusement park ferris wheel seats, various stadium seats, etc. Seats for viewing in theaters, theaters, cinemas, benches installed in stations, theme parks, outdoor parks, sofas and chairs used in homes and offices, barber chairs, and various medical institutions It can be applied to medical chairs that are used. In addition to the seat, it can be widely applied in fields that require a flexible feel, such as a bed, a futon, a pillow, a stroller, a toilet seat cover, and clothing.

It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure where the ventilation path was directly connected with the ventilation source. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure where the ventilation path was connected via the ventilation source and the nozzle. FIG. 3 (a) is a perspective view showing a ventilation device having a structure in which tubes are connected in two rows at a connection portion with a nozzle. ) Is a bb cross-sectional view in FIG. It is a figure which shows embodiment of this invention, and is a perspective view which shows the state which shaved the junction part of the upper row and lower row of a tube in the edge part by the side of the nozzle of a tube. FIG. 5 (a) is a perspective view showing a ventilating device having a structure in which a ventilation path by a square tube is connected to a blower source via a nozzle. FIG. 5 (b) is a diagram showing an embodiment of the present invention. These are bb sectional drawing in Fig.5 (a). It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure which notched the upper part of the edge part of the side which is not connected with the ventilation source of a tube. It is a figure which shows embodiment of this invention, and is sectional drawing which shows the state in which the ventilation apparatus is integrated in the seat. It is a figure which shows embodiment of this invention, and is a schematic sectional drawing which shows the state which blows off the wind when a blower outlet is formed in a curved surface part. It is a figure which shows embodiment of this invention, and is sectional drawing which shows the state in which the ventilation apparatus and the seat heater are integrated in the seat. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure where the tube integrated in parallel was connected to the nozzle in the state which piled up two sheets with the direction of the blower outlet reversed. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of the structure where two tubes integrated in parallel were piled up and connected to the nozzle, and the blower outlet of the through-hole was formed in the upper tube. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of the structure which has not integrated one part of adjacent tubes. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of the structure which connected the several tube integrated in parallel with the nozzle. It is a figure which shows embodiment of this invention, and is a sectional side view which shows the state which installed the ventilation apparatus in the back surface of the seat. It is a figure which shows embodiment of this invention, and is a perspective view which shows the state which provided the ventilation apparatus in the seat surface of the seat provided with the groove | channel. It is a figure which shows embodiment of this invention, and is a sectional side view which shows the state which provided the ventilation apparatus in the seat surface of the seat provided with the groove | channel. It is a figure which shows embodiment of this invention, and is a perspective view which shows the state which formed the through-hole when providing a ventilation apparatus in the seat surface of the seat in which the groove | channel was provided. It is a figure which shows embodiment of this invention, and is a sectional side view which shows the state which formed the through-hole when providing a ventilation apparatus in the seat surface of the seat in which the groove | channel was provided. It is a figure which shows embodiment of this invention, and is a sectional side view which shows the state which installed the double-layered ventilation path in both the seat surface and the back surface. FIG. 20A is a perspective view showing a ventilation device having a structure in which a plurality of tubes are integrated with two sheets sandwiched between two sheets, and FIG. 20B is a diagram showing an embodiment of the present invention. It is bb sectional drawing in Fig.20 (a). It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure which installed another several tube in the state which left predetermined space | interval, and integrated them with the sheet | seat. It is a figure which shows embodiment of this invention, and is a perspective view which shows the ventilation apparatus of a structure which connected the some nozzle and the ventilation path to the branch type duct connected to the ventilation source. It is a disassembled perspective view which shows a prior art example. It is a perspective view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation apparatus 2 Air supply source 3 Ventilation path 4 Tube 5 Outlet 6 Nozzle 7 Seat pad 8 Seat heater 9 Sheet skin

Claims (15)

A source of air;
A ventilation path connected in parallel with the plurality of tubes in contact with the air source and formed into a sheet shape; and
A ventilating device for a seat, wherein a blow-out opening is formed in a slit shape in the ventilation path. The seat ventilator according to claim 1, wherein
A seat ventilator characterized in that the tube is made of an olefinic thermoplastic elastomer . The seat ventilator according to claim 1, wherein
The ventilating device for a seat, wherein the ventilation path is connected to the air source via a nozzle . The seat ventilator according to claim 1, wherein
A ventilating device for a seat, wherein the tube has a circular cross-sectional shape . The seat ventilator according to claim 1, wherein
The ventilating device for a seat, wherein the tube has a square cross-sectional shape . The seat ventilator according to claim 1, wherein
A ventilating device for a seat , wherein an end of the tube opposite to the air source is closed . The seat ventilator according to claim 1, wherein
The seat ventilator , wherein an end of the tube opposite to the air source is open . The seat ventilator according to claim 1, wherein
The plurality of tubes are integrated in parallel by adhering adjacent tubes to each other . The seat ventilator according to claim 1, wherein
The ventilating device for a seat, wherein the plurality of tubes are installed on a seat and integrated in parallel through the seat. The seat ventilator according to claim 9,
The ventilating device for a seat, wherein the plurality of tubes are integrated in parallel so as to be sandwiched between a pair of seats . The seat ventilator according to claim 9,
The plurality of tubes are divided in the longitudinal direction, and the plurality of divided tubes are integrated in parallel in a state of being installed on the seat in a state where a predetermined interval exists . Ventilation device. A seat, comprising: a seat body; and the ventilating device for a seat according to any one of claims 1 to 11 incorporated in the seat body . The seat according to claim 12,
The seat body is composed of a seat pad and a seat skin fixed to the surface of the seat pad,
The sheet pad is provided with a groove for fixing the sheet skin,
The seat characterized in that the ventilation path of the ventilation device for seats is installed so as to avoid the groove . The seat according to claim 13,
The ventilation path of the above-mentioned seat ventilation device is installed in such a state as to be hung on the curved surface portion of the seat body,
A seat characterized in that a blow-off opening is provided in a portion of the ventilation path that extends over the curved surface portion . The seat according to claim 13,
  A seat characterized by being for a vehicle.

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